The CX-PA1240 is an enterprise-grade, network-connected audio power amplifier featuring a 240 W rated output and a built-in 10-zone speaker selector. Formulated for TOA’s advanced CX-1000 series IP communication ecosystem, it acts as a decentralized node that decodes high-fidelity digital network audio streams and distributes them over high-voltage 100 V or 70 V speaker infrastructures. Local memory registration provides standalone chime and emergency voice (EV) playback capabilities, protecting critical site functionality if server communication is dropped.
| Parameter | Specifications |
| Power Source | 100 – 240 V AC, 50/60 Hz |
| Rated Output | 240 W |
| Power Consumption | 330 W (at full rated output), 72 W (based on EN62368 safety metrics) |
| Audio Inputs |
2 Channels total: • Input 1: Selectable MIC/LINE (-60 dB to 0 dB), 10 kΩ, electronically balanced with switchable +24 V phantom power. • Input 2: Selectable level (-60 dB or 0 dB), 10 kΩ, electronically balanced. |
| Audio Outputs |
• Speaker Distribution: 10 channels, individually addressable via removable terminal blocks. • Recording Output: 1 channel, 0 dB, 10 kΩ, electronically balanced. |
| Output Voltage | 100 V or 70 V distribution line (hardware toggle selectable) |
| Frequency Response | 200 Hz – 16 kHz |
| Signal-to-Noise Ratio | 60 dB or greater |
| Total Distortion | 1% or less at 1 kHz (at rated power with a 20 kHz low-pass filter) |
| Network Architecture | Dual 100BASE-TX RJ45 ports (Supporting redundant paths; LAN A and LAN B are PoE compatible for control state power) |
| Network Protocols | TCP/IP, UDP, ARP, ICMP, HTTP, RTP, RTSP, IGMP, NTP, SIP, FTP, RSTP, SNMP |
| Audio Transmission | Sampling frequency: 16 kHz / 48 kHz adjustable; PCM and G.722 codecs |
| Packet Loss Recovery | Automatic silence insertion function |
| DSP Pipelines |
• Input: Gain, 2-Band EQ, Compressor, AGC, Trim, Gate (for VOX function). • Output: Gain, 7-Band EQ, Ambient Noise Control (ANC). |
| Control I/O Interface |
• Control Inputs: 10 channels, no-voltage make contact, 24 V DC open voltage. • Control Outputs: 10 channels, relay contacts (Max. capacity 125 V AC / 24 V DC, 4.0 A). |
| Emergency Control | 1 channel 24 V DC photo-coupler input for direct fire alarm muting links. |
| Device Dimensions | 420 (W) × 88.7 (H) × 326 (D) mm |
| Chassis Weight & Build | 5.6 kg; Pre-coated black steel plate with gray smoke ABS resin volume cover |
SKYRS maintains inventory, provisioning accessories, and localized logistics support across Pakistan—including central commercial distribution hubs in Karachi, Lahore, Islamabad, Rawalpindi, and Peshawar—for all product variants of the CX-PA1240 platform:
CX-PA1240-ST (Desktop/Tabletop Variant): Supplied natively with four non-slip, high-friction structural plastic feet and mounting screws. Tailored for independent command desks, small server rooms, or tabletop operations.
CX-PA1240-RM (Rackmount Variant): Bundled exclusively alongside TOA MB-25B industrial rack-mounting ears. This package secures the unit into a standard 19-inch 2U server rack layout, optimizing spatial alignment and cooling margins.
CX-PA1240-WM (Wall-Mount Variant): Packaged with heavy-gauge industrial YC-850 wall-mounting brackets, providing clean vertical frame integration in tight utility closets or telecommunication spaces.
To safeguard structural equipment performance and comply with enterprise validation standards, all field deployment, installation, and programming workflows are handled exclusively by certified SKYRS engineering units within Pakistan.
Chassis Assembly and Ventilation Management: Securing units via 2U rack alignment, high-strength wall anchoring, or desktop configurations. Multi-amplifier arrays are structurally spaced to meet strict thermal dissipation budgets under heavy inductive speaker line stresses.
Transducer Network Interfacing: Multi-zone termination of 100 V or 70 V loudspeaker field wiring using multi-pin removable terminal plugs, calculating system impedance and load curves below the 240 W threshold.
Environmental Sensor Interfacing: Installation and matching of specialized ANC sensor microphones across areas with volatile noise floors (such as transport terminals, manufacturing floors, and public lobbies).
Network Redundancy Implementation: Multi-homing both RJ45 ports into independent managed network segments to form a localized Rapid Spanning Tree Protocol (RSTP) ring framework, mitigating network drops.
Logical Zoning and IP Mapping: Programming unicast or multicast target paths, routing network paging desks directly to standalone addresses or macro groups within the 10 local zones.
DSP Calibration: Setting soft-driven 7-band output equalizers to balance room resonances. Adjusting the input compressor, Automatic Gain Control (AGC), and Voice-Operated Switching (VOX) parameters.
ANC Ambient Calibration: Programming the internal Ambient Noise Control processing loops to sample environment sound baselines, modifying the output gain curve automatically to ensure real-time paging clarity.
Fail-Safe and Emergency Routine Layering: Connecting the 24 V DC emergency cutoff lines directly to fire safety panels. Setting up CPU-bypass protocols and configuring standalone local flash storage automation rules to guarantee emergency chime and voice playback if network connection to the central System Manager fails.
